Senior Mobile Developer, iOS

Signify

full-time

Posted on: 9/27/2025

Location Type: Hybrid

Location: Budapest • 🇭🇺 Hungary

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Senior

AndroidFlutterGoiOSJenkinsObjective-CReactReact NativeSwift

About the role

Design, develop, and maintain critical mobile components in both Swift and Objective-C.
Go beyond surface-level development to explore the depths of the iOS platform, including low-level APIs, performance optimization, memory management, and background processing.
Build and maintain a robust testing suite (unit, integration, and E2E) and fully automate our build, testing, and release processes using CI/CD pipelines.
Investigate and solve unique and challenging technical problems that require deep research and first-principles thinking.
Act as the subject matter expert for all things iOS, providing technical guidance and helping to shape our long-term mobile strategy.
Work closely with Android, web, backend, and product teams to ensure seamless integration of your iOS components with many other aspects of Signifyd’s technology stack.
Create and maintain clear, comprehensive technical documentation for your iOS products.
Collaborate with our Android team to ensure consistency and architectural alignment across platforms.

Extensive professional experience in native iOS development with strong proficiency in both Swift and Objective-C.
Demonstrable experience building foundational, reusable mobile components, libraries, or frameworks.
A strong understanding of API design principles and a passion for creating clean, maintainable, and robust code.
Deep knowledge of mobile testing methodologies and frameworks (e.g., XCTest, XCUITest).
Hands-on experience implementing and managing CI/CD pipelines for mobile development (e.g., GitHub Actions, Jenkins, Fastlane).
Exceptional problem-solving skills, a curious mindset, and meticulous attention to detail.
Excellent communication and documentation skills, with the ability to collaborate effectively in a cross-functional team environment.
Experience with cross-platform frameworks (e.g., React Native, Flutter, Xamarin) and/or native Android development is a significant plus.

Benefits

Tip: use these terms in your resume and cover letter to boost ATS matches.

SwiftObjective-CiOS developmentAPI designmobile testing methodologiesXCTestXCUITestCI/CD pipelinesGitHub ActionsJenkins

problem-solvingcurious mindsetattention to detailcommunicationdocumentationcollaboration